"connect it in series with a 270 ohms or 330 ohms resistor."

The size of the resistor, of course, depends on the supply voltage! What matters is the current through the LED - see Oren's reply earlier.

"this may not be the same for you"

As I've said before, just because two devices have the same number of pins, and apparently similar packages is absolutely no reason to assume that they share the same pinout!!